Rolling-mill.



No. 722,022. PATENTED MAR. 3, 1903 G. L. HUSTON.

ROLLING MILL.

APPLICATION FILED JULY 24, 1901.

N0 MODEL.

2 SHEETS-SHEBT 1.

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' PATENTED MAR. 3, 1903.

U. L. HUSTON. ROLLING MILL. APPLIGATION FILED JULY 24, 1901.

2 SHEETS-SHEET 2.

"N0 MODEL.

E A AH who STATES CHARLES L. I-IUSTON, OF COATESVILLE, PENNSYLVANIA.

R OLLlNG-JVHLL.

SPECIFICATION forming part of Letters latent No. (22,022, dated March 3, 1903.

Application filed July 24, 1901.

To all whom, zit may concern.-

Beit known that 1, CHARLES L. HUSTON, a citizen of the United States, and a resident of Coatesville, Pennsylvania, have invented certain Improvements in Rolling-Mills, of which the following is a specification.

My invention relates to certain improvements in the details of construction of rolling-mills, particularly the mills known as three high universal mills, in which there are three horizontal'rollers, one placed above another, and two sets of vertically-arranged rollers at each side of the horizontal rollers, so that the bloom or plate being rolled is reduced both by the horizontal rollers and the Vertical rollers.

The main object of my invention is to improve the details of construction of a rollingmill, particularly of this type, so as to provide bracket guides or tables to support the material between the roller-tables and the central horizontal roll.

A further object of the invention is to so arrange the upper bearings for the vertical rolls that the said rolls can be readily removed Without materially dismantling the mill, and a still further object is to provide a suitable step-bearing for the vertically-an. ranged rolls.

In the accompanying drawings, Figure 1 is a front view of a universal mill, illustrating my invention. Fig. 2 is a vertical sectional view on the line 2 2, Fig. 1. Fig. 3 is a sectional plan view on the line 3 3, Fig. 2. Fig. 4: is a sectional plan View on the line 4 4, Fig. 2. Fig. 5 is a detail View illustrating the construction of the step-bearing for the vertical rolls, and Fig. 6 is a perspective view illustrating the detail construction of a portion of my invention.

A A are the housings of the rolling-mill.

B is the lower roll, B the upper roll, and C the intermediate roll. This intermediate roll can be shifted toward and from either of the two rolls B B, so that the metal can be rolled going forwardbetween the intermediate roll and the upper roll and can be rolled on its return between the intermediate roll and the lower roll.

The intermediate roll G is mounted in a suitable carriage or bearing-frame E, guided in the housings. This carriage can be raised erial No. 69,501- (No model.)

and lowered by any suitable mechanism common in this type of rolling-mill. The carriage is made of two bearing-chucks for the roll and connecting cross-bars securely bolted to the chucks, so as to make a rigid frame.

F F are the roller-tables, having rolls f for supporting the plate as it comes from the rolling-roll. These tables are movable vertically, so as to deliver the plate to or receive the plate from either the upper or lower pass of the mill. The rollsfmay be driven in any suitable manner common to rolling mill tables.

D D are the vertical rolls of the rollingmill. Each of these rolls is mounted in a stepbearing G, the details of which will be described hereinafter, and the upper ends of the rolls are supported in a bearing (1, carried by the heavy cross-bars A.

It has been usual in three-high plate-mills to extend the roller-tables to a point near the horizontal rolls; but it will be seen that this construction is not feasible for universal mills owing to the presence of the vertical rolls and to the necessity for their lateral adjustment.

By my construction I terminate the rollertables outside of the line of the vertical rolls and secure to the frame E suitable brackets E. These brackets in the present instance have, as shown in Fig. 6, lips e, which enter recesses or pockets e in the cross-bars of the frame E, and the brackets are also bolted thereto, so that they must move with the frame and with the intermediate roll, yet are readily detachable. It will be seen that by this construction the brackets can extend be yond the vertically-arranged rolls and in close proximity to the roller-tables F F, and these brackets can be so formed as to allow for a limited adjustment of the Vertical rolls, and, if required, several sets of these brackets may be provided, so that when it is necessary to make a considerable adjustment in the vertical rolls one set of brackets may be removed and another set substituted therefor.

In some instances I have found that it is necessary to support the outer ends of the brackets when the brackets are in the posiat each end, which rest upon the lower beams A which connect the housings. These legs 6 are far enough apart so as to allow free travel of the plate between the vertical rolls D D. The legs may be made as a permanent part of the cross-bar or secured directly to the brackets; but I prefer to make them'verti cally adjustable by threading the upper ends of the legs and confining the legs to the crossbar by nuts. (Illustrated in Figs. 2 and 3.)

I will now describe the method of supporting the vertical rolls. The step-bearing G is clearly illustrated in Fig. 5. The bearing G is mounted on a cross-bar A in the usual manner and extends up into an annular groove (1 in the lower end of the roll. The main trunnion d of the roll extends within the bearing and in contact with the babbitted bushing g of the bearing G, and this trnnnion is reduced at d and provided with a shoe 9. This shoe is keyed to the roll, so that it will turn with it, and forms a protector for the end of the roll. The bearing G is slotted at 9 so that bearing or filling plates g may beinserted between the bearing G and the shoe 9 in order that wear can be readily taken up. By the construction shown the single bearing G not only supports the vertical roll, but also holds it in position laterally. Heretofore the bearing has been made in two parts; but I find in constructing it as described that the bearing can be kept lubricated at all times and will be free of water, which is liberally used during the process of rolling plates. Water is prevented gaining access to the hearing by the bearing extending into the groove d in the roll, the groove forming a flange from which the water will drop clear of the bearing.

The lubricant may be fed to the bearing in any suitable manner, preferably through the roll D, which is bored to form a passage d,

the lubricant escaping from this passage through one or more transverse passages shown.

The upper end of the rolls D D are supported in the bearings (1 cl. These bearings, as shown in Fig. 4, are made in two parts t' 2'. These parts are suitably bushed and are carried by the heavy cross-beam A, which is secured to the housings. The cross-beam A has an inner flange a, forming a T- head. Each of the parts i t of the bearing D has lips 71 which extend back of the flange at of the bar A and are of sufficient strength to carry the parts; but in order to steady the inner portions of the hearing I provide a tongue 2' on each part, which is arranged to extend into a groove on the cross-bar A coupled to the housings. The parts i t" are secured together by bolts 0 c.

The bearings for supporting the vertical rolls can be moved toward and from each other by any suitable adjusting means common to rolling-mills of this type.

When it is desired to remove the vertical rolls from the mill, all that is necessary is to separate the parts i 11' by removing the nuts from the bolts 0 c and removing the crossshaft I and the gearing by which the said shaft is geared to the vertical rolls, as there is a suflicient distance between the crossframe A and the bar A to allow for the free passage of the rolls. This construction is an important feature of my invention, as it enables me to quickly remove the vertical rolls without dismantling the mill to any great extent, and it also enables me to make the mill compact, bringing the vertical rolls close to the horizontal rolls. As the main strain is taken by the heavy beams A, the inner bars A can be made comparatively light.

I claim as my invention 1. The combination of a roller-table, housin gs therefor, three horizontal rolls supported therein, vertical rolls, a movable frame carrying the intermediate of the horizontal rolls and a bracket carried by said frame extending between certain of said vertical rolls and rigidly connected to said frame so as to remain in a fixed position relatively to the intermediate roll, said bracket bridging the space between said roll and the roller-table, substantially as described.

2. The combination of a receiving-table, housings, three horizontal rolls supported therein, a pair of vertical rolls arranged on each side of the horizontal rolls, a frame carrying the intermediate of said horizontal rolls, brackets rigidly secured to each side of the frame, one of said brackets extending between one set of vertical rolls and the other bracket extending between the second set of verticalrolls, said bracket bridging the space between the intermediate roll and the receiving-tables and being supported so as to maintain a fixed position relatively to said roll, substantially as described.

3. The combination in a rolling-mill, of the three horizontal rolls, vertical rolls, a frame carrying the intermediate roll, a bracket on said frame extending between the vertical rolls, and legs on the bracket arranged to rest on a fixed support when the intermediate roll is in its lowest position, substantially as described.

4. The combination in a rolling-mill having three horizontal rolls, vertical rolls, a frame carrying the intermediate horizontal roll, a bracket secured to said frame and extending between the Vertical rolls, and adjustable legs for said bracket, substantially as described.

5. The combination in a rolling-mill, of the three horizontal rolls, vertical rolls, a movable frame carrying the intermediate roll, a bracket on said frame extending between the vertical rolls, a bar secured to the bracket, sockets at each end of the bar, rods forming legs for the bracket, said rods extending through sockets in the bar, and nuts on the rods so that the legs can be adjusted vertically, substantially as described.

6. The combination of a roller-table, hous- IIO ings, three horizontal rolls supported therein, vertical rolls, a movable frame carrying the intermediate of said horizontal rolls, and provided with a cross-bar having a recess with a bracket constructed with a projecting portion designed to enter said recess and thereby detachably hold the bracket to the movable frame, substantially as described.

7. The combination in a rolling-mill, of the housings, the horizontal rolls, vertical rolls, lower bearings for said vertical rolls, an upper bearin g for the said rolls, said upper bearing being made in two parts, a cross-beam extending from one housing to the other outside of the rolls, said beam having a T-headed flange, the parts of the bearing having lips extending back of the T-headed flange so that the bearing is supported by the said beam, with a cross-bar mounted between the CHARLES L. HUSTON.

Witnessesr J. L. OHRIsTY, HENRY I-IowsoN. 

